Pointed Hopf algebras: a guided tour to the liftings
2019 ◽
Vol 53
(supl)
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pp. 1-44
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Keyword(s):
The One
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This article serves a two-fold purpose. On the one hand, it is asurvey about the classification of finite-dimensional pointed Hopf algebras with abelian coradical, whose final step is the computation of the liftings or deformations of graded Hopf algebras. On the other, we present a step-by-step guide to carry out the strategy developed to construct the liftings. As an example, we conclude the work with the classification of pointed Hopf algebras of Cartan type B2.